g. , 202 FIG. 2A and/or with a central server or a cloud computing system to provide a variety of useful smart home functions. The smart home environment 100 may include one or more intelligent, multi sensing, network connected thermostats 102 hereinafter referred to as “smart thermostats 102”, one or more intelligent, network connected, multi sensing hazard detection units 104 hereinafter referred to as “smart hazard detectors 104”, one or more intelligent, multi sensing, network connected entryway interface devices 106 and 120 hereinafter referred to as “smart doorbells 106” and “smart door locks 120”, and one or more intelligent, multi sensing, network connected alarm systems 122 hereinafter referred to as “smart alarm systems 122”. The smart doorbell 106 and/or the smart door lock 120 may detect a person's approach to or departure from a location e. g. , inside homes, restaurants, stores, streets, parking lots, and/or the smart home environments 100 of FIG. 1. Each video source 222 may be bound to one or more reviewer accounts, and the server system 164 provides video monitoring data for the video source 222 to client devices 220 associated with the reviewer accounts. For example, the portable electronic device 166 is an example of the client device 220. In some implementations, the server system 164 is a video processing server that provides video processing services to video sources and client devices 220.